The construction of the metal and pipe should ablate the rust first.

对金属板、管材的防腐施工要求先进行除锈、清洗处理后再进行涂料施工。

Method Adopting choanal atresia to ablate 51 cases with maxillary sinus well ordered anticipate pathological changes by canine nest and mid nasal road.

方法采用经鼻内窥镜下经犬齿窝和中鼻道联合进路的方法切除上颌窦占位病变。